package com.dongjiantong.web.boss.handler;


import lombok.extern.slf4j.Slf4j;
import org.aspectj.lang.JoinPoint;
import org.aspectj.lang.ProceedingJoinPoint;
import org.aspectj.lang.annotation.*;
import org.springframework.stereotype.Component;
import org.springframework.web.context.request.RequestContextHolder;
import org.springframework.web.context.request.ServletRequestAttributes;

import javax.servlet.http.HttpServletRequest;
import java.util.Arrays;
import java.util.Enumeration;

/**
 * Created by cao on 2017/10/27.
 */
@Aspect
@Component
@Slf4j
public class HttpAspect {

    ////两个..代表所有子目录，最后括号里的两个..代表所有参数
    @Pointcut("execution(public * com.dongjiantong.web..controller.*.*(..))")
    public void logPointCut()
    {}

    @Before("logPointCut()")
    public void doBefore(JoinPoint joinPoint) throws Throwable {
        // 接收到请求，记录请求内容
        ServletRequestAttributes attributes = (ServletRequestAttributes) RequestContextHolder.getRequestAttributes();
        HttpServletRequest request = attributes.getRequest();

        // 记录下请求内容
        log.info("请求地址 : " + request.getRequestURL().toString());
        log.info("HTTP METHOD : " + request.getMethod());
        log.info("IP : " + request.getRemoteAddr());
        log.info("CLASS_METHOD : " + joinPoint.getSignature().getDeclaringTypeName() + "."
                + joinPoint.getSignature().getName());
        log.info("参数 : " + Arrays.toString(joinPoint.getArgs()));

        //System.out.print("请求地址 : " + request.getRequestURL().toString());
        //log.info("HTTP METHOD : " + request.getMethod());

        String token = request.getHeader("token");
        System.out.println("token="+token);
        //获取所有参数方法：
        Enumeration<String> enu=request.getParameterNames();
        while(enu.hasMoreElements()){
            String paraName=(String)enu.nextElement();
            System.out.println(paraName+": "+request.getParameter(paraName));
        }



    }

    @AfterReturning(returning = "ret", pointcut = "logPointCut()")// returning的值和doAfterReturning的参数名一致
    public void doAfterReturning(Object ret) throws Throwable {
        // 处理完请求，返回内容
        log.info("返回值 : " + ret);
//        System.out.print("返回值 : " + ret);
    }

    @Around("logPointCut()")
    public Object doAround(ProceedingJoinPoint pjp) throws Throwable {
        long startTime = System.currentTimeMillis();
        Object ob = pjp.proceed();// ob 为方法的返回值
                log.info("耗时 : " + (System.currentTimeMillis() - startTime));
        //System.out.print("耗时 : " + (System.currentTimeMillis() - startTime));
        return ob;
    }


}